cmake_parse_arguments: Restore ;-list argument flattening

The re-implementation in commit v3.5.0-rc1~116^2~1 (CMakeParseArguments:
replace by native cmake_parse_arguments command, 2015-12-05) introduced
a regression when parsing the ARGN arguments with cmake_parse_arguments.
The original implementation used

    foreach(currentArg ${ARGN})

to iterate over input arguments.  This flattened ;-lists within the
arguments whether they were quoted or not.  Fix our new implementation
to preserve this behavior and add a test case to cover it.

Signed-off-by: Dimitar Yordanov <dimitar.yordanov@sap.com>
Signed-off-by: Matthias Maennich <matthias.maennich@sap.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/Source/cmParseArgumentsCommand.cxx b/Source/cmParseArgumentsCommand.cxx
index a861965..ca76c88 100644
--- a/Source/cmParseArgumentsCommand.cxx
+++ b/Source/cmParseArgumentsCommand.cxx
@@ -97,10 +97,18 @@ bool cmParseArgumentsCommand
   } insideValues = NONE;
   std::string currentArgName;
 
-  // now iterate over the remaining arguments
-  // and fill in the values where applicable
+  // Flatten ;-lists in the arguments into a single list as was done
+  // by the original function(CMAKE_PARSE_ARGUMENTS).
+  list.clear();
   for(; argIter != argEnd; ++argIter)
     {
+    cmSystemTools::ExpandListArgument(*argIter, list);
+    }
+
+  // iterate over the arguments list and fill in the values where applicable
+  for (argIter = list.begin(), argEnd = list.end();
+       argIter != argEnd; ++argIter)
+    {
     const options_map::iterator optIter = options.find(*argIter);
     if (optIter != options.end())
       {